Where are knights in the social hierarchy in the middle ages?

The social system in the feudal system was a hierarchical class structure. The monarch was the most powerful. The higher priests and clergy, who often owned land and serfs, had status and power just above that of the powerful nobles. Knights and lesser nobles, along with the lower clergy, were next in the hierarchy.

Above peasants but below barons. AKA the "lesser-nobles"

B. marbury v madison

The answer is d) lindbergh baby kidnapping